GB1391732A - Servo control device for a hydraulic machine - Google Patents

Servo control device for a hydraulic machine

Info

Publication number
GB1391732A
GB1391732A GB1334973A GB1334973A GB1391732A GB 1391732 A GB1391732 A GB 1391732A GB 1334973 A GB1334973 A GB 1334973A GB 1334973 A GB1334973 A GB 1334973A GB 1391732 A GB1391732 A GB 1391732A
Authority
GB
United Kingdom
Prior art keywords
valve
control device
fluid
spring
servo control
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB1334973A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of GB1391732A publication Critical patent/GB1391732A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/12—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by varying the length of stroke of the working members
    • F04B49/123—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by varying the length of stroke of the working members by changing the eccentricity of one element relative to another element
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B9/00—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member
    • F15B9/02—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type
    • F15B9/08—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type controlled by valves affecting the fluid feed or the fluid outlet of the servomotor
    • F15B9/10—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type controlled by valves affecting the fluid feed or the fluid outlet of the servomotor in which the controlling element and the servomotor each controls a separate member, these members influencing different fluid passages or the same passage

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Reciprocating Pumps (AREA)
  • Servomotors (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

1391732 Fluid-pressure servomotor systems ROBERT BOSCH GmbH 20 March 1973 [17 May 1972] 13349/73 Heading G3P A fluid-pressure servomotor has a control valve 5 actuated by a rack and pinion 46, 47 and acted upon by two compression springs 42, 45 having different pre-tensions when the valve is in its null position determined by an adjustable abutment 40. The tension of the spring 45 is opposed to and may be equal to half that of the spring 42 which ceases to act on the control valve after a collar 41 engages the abutment 40. The valve has a moving-seat follow-up action with a follower 15 to connect a space within a piston 11 to a pump 35 or an outlet 36. The servomotor may be used to adjust the floating ring 13 of a centrifugal pump.
GB1334973A 1972-05-17 1973-03-20 Servo control device for a hydraulic machine Expired GB1391732A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2223964A DE2223964C3 (en) 1972-05-17 1972-05-17 Servo adjustment device

Publications (1)

Publication Number Publication Date
GB1391732A true GB1391732A (en) 1975-04-23

Family

ID=5845078

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1334973A Expired GB1391732A (en) 1972-05-17 1973-03-20 Servo control device for a hydraulic machine

Country Status (7)

Country Link
US (1) US3880050A (en)
JP (1) JPS5546522B2 (en)
CH (1) CH550330A (en)
DE (1) DE2223964C3 (en)
FR (1) FR2184872B1 (en)
GB (1) GB1391732A (en)
IT (1) IT973115B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3982470A (en) * 1975-08-04 1976-09-28 Abex Corporation Control system for axial piston fluid energy translating device
DE2724264C2 (en) * 1977-05-28 1985-12-19 Robert Bosch Gmbh, 7000 Stuttgart Follow-up adjustment device for a hydraulic machine
US4146244A (en) * 1977-05-31 1979-03-27 The Bendix Corporation Rack and pinion power steering device
CH624187A5 (en) * 1977-09-29 1981-07-15 Bbc Brown Boveri & Cie
DE2825790C2 (en) * 1978-06-13 1982-08-05 Danfoss A/S, 6430 Nordborg Servomotor with follow-up control
DE7838207U1 (en) * 1978-12-23 1980-06-04 Robert Bosch Gmbh, 7000 Stuttgart ADJUSTMENT FOR A HYDRO MACHINE
DE8328832U1 (en) * 1983-10-06 1985-03-14 Robert Bosch Gmbh, 7000 Stuttgart SERVO ADJUSTMENT FOR A HYDRO MACHINE

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US557539A (en) * 1896-04-07 Steering-gear
US2683348A (en) * 1950-05-26 1954-07-13 Honeywell Regulator Co Modulated continuous flow hydraulic control apparatus
US2681045A (en) * 1952-06-28 1954-06-15 Vickers Inc Motor distributing valve with a load feel area
US2945449A (en) * 1954-06-03 1960-07-19 Bendix Aviat Corp Hydraulic control pump
US2917026A (en) * 1955-04-01 1959-12-15 Curtiss Wright Corp Fast action hydraulic valve
US3011483A (en) * 1959-10-15 1961-12-05 Bendix Corp Rotary actuator
CH440988A (en) * 1965-08-27 1967-07-31 Von Roll Ag Hydraulic control device

Also Published As

Publication number Publication date
FR2184872B1 (en) 1978-02-10
DE2223964B2 (en) 1977-07-28
US3880050A (en) 1975-04-29
DE2223964A1 (en) 1973-12-06
CH550330A (en) 1974-06-14
IT973115B (en) 1974-06-10
DE2223964C3 (en) 1978-03-16
FR2184872A1 (en) 1973-12-28
JPS5546522B2 (en) 1980-11-25
JPS4954793A (en) 1974-05-28

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee